v3_cpols.c revision 325335
1/* v3_cpols.c */ 2/* 3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 4 * 1999. 5 */ 6/* ==================================================================== 7 * Copyright (c) 1999-2004 The OpenSSL Project. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. All advertising materials mentioning features or use of this 22 * software must display the following acknowledgment: 23 * "This product includes software developed by the OpenSSL Project 24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25 * 26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27 * endorse or promote products derived from this software without 28 * prior written permission. For written permission, please contact 29 * licensing@OpenSSL.org. 30 * 31 * 5. Products derived from this software may not be called "OpenSSL" 32 * nor may "OpenSSL" appear in their names without prior written 33 * permission of the OpenSSL Project. 34 * 35 * 6. Redistributions of any form whatsoever must retain the following 36 * acknowledgment: 37 * "This product includes software developed by the OpenSSL Project 38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51 * OF THE POSSIBILITY OF SUCH DAMAGE. 52 * ==================================================================== 53 * 54 * This product includes cryptographic software written by Eric Young 55 * (eay@cryptsoft.com). This product includes software written by Tim 56 * Hudson (tjh@cryptsoft.com). 57 * 58 */ 59 60#include <stdio.h> 61#include "cryptlib.h" 62#include <openssl/conf.h> 63#include <openssl/asn1.h> 64#include <openssl/asn1t.h> 65#include <openssl/x509v3.h> 66 67#include "pcy_int.h" 68 69/* Certificate policies extension support: this one is a bit complex... */ 70 71static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol, 72 BIO *out, int indent); 73static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method, 74 X509V3_CTX *ctx, char *value); 75static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals, 76 int indent); 77static void print_notice(BIO *out, USERNOTICE *notice, int indent); 78static POLICYINFO *policy_section(X509V3_CTX *ctx, 79 STACK_OF(CONF_VALUE) *polstrs, int ia5org); 80static POLICYQUALINFO *notice_section(X509V3_CTX *ctx, 81 STACK_OF(CONF_VALUE) *unot, int ia5org); 82static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos); 83 84const X509V3_EXT_METHOD v3_cpols = { 85 NID_certificate_policies, 0, ASN1_ITEM_ref(CERTIFICATEPOLICIES), 86 0, 0, 0, 0, 87 0, 0, 88 0, 0, 89 (X509V3_EXT_I2R)i2r_certpol, 90 (X509V3_EXT_R2I)r2i_certpol, 91 NULL 92}; 93 94ASN1_ITEM_TEMPLATE(CERTIFICATEPOLICIES) = 95 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CERTIFICATEPOLICIES, POLICYINFO) 96ASN1_ITEM_TEMPLATE_END(CERTIFICATEPOLICIES) 97 98IMPLEMENT_ASN1_FUNCTIONS(CERTIFICATEPOLICIES) 99 100ASN1_SEQUENCE(POLICYINFO) = { 101 ASN1_SIMPLE(POLICYINFO, policyid, ASN1_OBJECT), 102 ASN1_SEQUENCE_OF_OPT(POLICYINFO, qualifiers, POLICYQUALINFO) 103} ASN1_SEQUENCE_END(POLICYINFO) 104 105IMPLEMENT_ASN1_FUNCTIONS(POLICYINFO) 106 107ASN1_ADB_TEMPLATE(policydefault) = ASN1_SIMPLE(POLICYQUALINFO, d.other, ASN1_ANY); 108 109ASN1_ADB(POLICYQUALINFO) = { 110 ADB_ENTRY(NID_id_qt_cps, ASN1_SIMPLE(POLICYQUALINFO, d.cpsuri, ASN1_IA5STRING)), 111 ADB_ENTRY(NID_id_qt_unotice, ASN1_SIMPLE(POLICYQUALINFO, d.usernotice, USERNOTICE)) 112} ASN1_ADB_END(POLICYQUALINFO, 0, pqualid, 0, &policydefault_tt, NULL); 113 114ASN1_SEQUENCE(POLICYQUALINFO) = { 115 ASN1_SIMPLE(POLICYQUALINFO, pqualid, ASN1_OBJECT), 116 ASN1_ADB_OBJECT(POLICYQUALINFO) 117} ASN1_SEQUENCE_END(POLICYQUALINFO) 118 119IMPLEMENT_ASN1_FUNCTIONS(POLICYQUALINFO) 120 121ASN1_SEQUENCE(USERNOTICE) = { 122 ASN1_OPT(USERNOTICE, noticeref, NOTICEREF), 123 ASN1_OPT(USERNOTICE, exptext, DISPLAYTEXT) 124} ASN1_SEQUENCE_END(USERNOTICE) 125 126IMPLEMENT_ASN1_FUNCTIONS(USERNOTICE) 127 128ASN1_SEQUENCE(NOTICEREF) = { 129 ASN1_SIMPLE(NOTICEREF, organization, DISPLAYTEXT), 130 ASN1_SEQUENCE_OF(NOTICEREF, noticenos, ASN1_INTEGER) 131} ASN1_SEQUENCE_END(NOTICEREF) 132 133IMPLEMENT_ASN1_FUNCTIONS(NOTICEREF) 134 135static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method, 136 X509V3_CTX *ctx, char *value) 137{ 138 STACK_OF(POLICYINFO) *pols = NULL; 139 char *pstr; 140 POLICYINFO *pol; 141 ASN1_OBJECT *pobj; 142 STACK_OF(CONF_VALUE) *vals; 143 CONF_VALUE *cnf; 144 int i, ia5org; 145 pols = sk_POLICYINFO_new_null(); 146 if (pols == NULL) { 147 X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE); 148 return NULL; 149 } 150 vals = X509V3_parse_list(value); 151 if (vals == NULL) { 152 X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_X509V3_LIB); 153 goto err; 154 } 155 ia5org = 0; 156 for (i = 0; i < sk_CONF_VALUE_num(vals); i++) { 157 cnf = sk_CONF_VALUE_value(vals, i); 158 if (cnf->value || !cnf->name) { 159 X509V3err(X509V3_F_R2I_CERTPOL, 160 X509V3_R_INVALID_POLICY_IDENTIFIER); 161 X509V3_conf_err(cnf); 162 goto err; 163 } 164 pstr = cnf->name; 165 if (!strcmp(pstr, "ia5org")) { 166 ia5org = 1; 167 continue; 168 } else if (*pstr == '@') { 169 STACK_OF(CONF_VALUE) *polsect; 170 polsect = X509V3_get_section(ctx, pstr + 1); 171 if (!polsect) { 172 X509V3err(X509V3_F_R2I_CERTPOL, X509V3_R_INVALID_SECTION); 173 174 X509V3_conf_err(cnf); 175 goto err; 176 } 177 pol = policy_section(ctx, polsect, ia5org); 178 X509V3_section_free(ctx, polsect); 179 if (!pol) 180 goto err; 181 } else { 182 if (!(pobj = OBJ_txt2obj(cnf->name, 0))) { 183 X509V3err(X509V3_F_R2I_CERTPOL, 184 X509V3_R_INVALID_OBJECT_IDENTIFIER); 185 X509V3_conf_err(cnf); 186 goto err; 187 } 188 pol = POLICYINFO_new(); 189 if (pol == NULL) { 190 X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE); 191 goto err; 192 } 193 pol->policyid = pobj; 194 } 195 if (!sk_POLICYINFO_push(pols, pol)) { 196 POLICYINFO_free(pol); 197 X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE); 198 goto err; 199 } 200 } 201 sk_CONF_VALUE_pop_free(vals, X509V3_conf_free); 202 return pols; 203 err: 204 sk_CONF_VALUE_pop_free(vals, X509V3_conf_free); 205 sk_POLICYINFO_pop_free(pols, POLICYINFO_free); 206 return NULL; 207} 208 209static POLICYINFO *policy_section(X509V3_CTX *ctx, 210 STACK_OF(CONF_VALUE) *polstrs, int ia5org) 211{ 212 int i; 213 CONF_VALUE *cnf; 214 POLICYINFO *pol; 215 POLICYQUALINFO *qual; 216 if (!(pol = POLICYINFO_new())) 217 goto merr; 218 for (i = 0; i < sk_CONF_VALUE_num(polstrs); i++) { 219 cnf = sk_CONF_VALUE_value(polstrs, i); 220 if (!strcmp(cnf->name, "policyIdentifier")) { 221 ASN1_OBJECT *pobj; 222 if (!(pobj = OBJ_txt2obj(cnf->value, 0))) { 223 X509V3err(X509V3_F_POLICY_SECTION, 224 X509V3_R_INVALID_OBJECT_IDENTIFIER); 225 X509V3_conf_err(cnf); 226 goto err; 227 } 228 pol->policyid = pobj; 229 230 } else if (!name_cmp(cnf->name, "CPS")) { 231 if (!pol->qualifiers) 232 pol->qualifiers = sk_POLICYQUALINFO_new_null(); 233 if (!(qual = POLICYQUALINFO_new())) 234 goto merr; 235 if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual)) 236 goto merr; 237 if (!(qual->pqualid = OBJ_nid2obj(NID_id_qt_cps))) { 238 X509V3err(X509V3_F_POLICY_SECTION, ERR_R_INTERNAL_ERROR); 239 goto err; 240 } 241 if (!(qual->d.cpsuri = M_ASN1_IA5STRING_new())) 242 goto merr; 243 if (!ASN1_STRING_set(qual->d.cpsuri, cnf->value, 244 strlen(cnf->value))) 245 goto merr; 246 } else if (!name_cmp(cnf->name, "userNotice")) { 247 STACK_OF(CONF_VALUE) *unot; 248 if (*cnf->value != '@') { 249 X509V3err(X509V3_F_POLICY_SECTION, 250 X509V3_R_EXPECTED_A_SECTION_NAME); 251 X509V3_conf_err(cnf); 252 goto err; 253 } 254 unot = X509V3_get_section(ctx, cnf->value + 1); 255 if (!unot) { 256 X509V3err(X509V3_F_POLICY_SECTION, X509V3_R_INVALID_SECTION); 257 258 X509V3_conf_err(cnf); 259 goto err; 260 } 261 qual = notice_section(ctx, unot, ia5org); 262 X509V3_section_free(ctx, unot); 263 if (!qual) 264 goto err; 265 if (!pol->qualifiers) 266 pol->qualifiers = sk_POLICYQUALINFO_new_null(); 267 if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual)) 268 goto merr; 269 } else { 270 X509V3err(X509V3_F_POLICY_SECTION, X509V3_R_INVALID_OPTION); 271 272 X509V3_conf_err(cnf); 273 goto err; 274 } 275 } 276 if (!pol->policyid) { 277 X509V3err(X509V3_F_POLICY_SECTION, X509V3_R_NO_POLICY_IDENTIFIER); 278 goto err; 279 } 280 281 return pol; 282 283 merr: 284 X509V3err(X509V3_F_POLICY_SECTION, ERR_R_MALLOC_FAILURE); 285 286 err: 287 POLICYINFO_free(pol); 288 return NULL; 289 290} 291 292static POLICYQUALINFO *notice_section(X509V3_CTX *ctx, 293 STACK_OF(CONF_VALUE) *unot, int ia5org) 294{ 295 int i, ret; 296 CONF_VALUE *cnf; 297 USERNOTICE *not; 298 POLICYQUALINFO *qual; 299 if (!(qual = POLICYQUALINFO_new())) 300 goto merr; 301 if (!(qual->pqualid = OBJ_nid2obj(NID_id_qt_unotice))) { 302 X509V3err(X509V3_F_NOTICE_SECTION, ERR_R_INTERNAL_ERROR); 303 goto err; 304 } 305 if (!(not = USERNOTICE_new())) 306 goto merr; 307 qual->d.usernotice = not; 308 for (i = 0; i < sk_CONF_VALUE_num(unot); i++) { 309 cnf = sk_CONF_VALUE_value(unot, i); 310 if (!strcmp(cnf->name, "explicitText")) { 311 if (!(not->exptext = M_ASN1_VISIBLESTRING_new())) 312 goto merr; 313 if (!ASN1_STRING_set(not->exptext, cnf->value, 314 strlen(cnf->value))) 315 goto merr; 316 } else if (!strcmp(cnf->name, "organization")) { 317 NOTICEREF *nref; 318 if (!not->noticeref) { 319 if (!(nref = NOTICEREF_new())) 320 goto merr; 321 not->noticeref = nref; 322 } else 323 nref = not->noticeref; 324 if (ia5org) 325 nref->organization->type = V_ASN1_IA5STRING; 326 else 327 nref->organization->type = V_ASN1_VISIBLESTRING; 328 if (!ASN1_STRING_set(nref->organization, cnf->value, 329 strlen(cnf->value))) 330 goto merr; 331 } else if (!strcmp(cnf->name, "noticeNumbers")) { 332 NOTICEREF *nref; 333 STACK_OF(CONF_VALUE) *nos; 334 if (!not->noticeref) { 335 if (!(nref = NOTICEREF_new())) 336 goto merr; 337 not->noticeref = nref; 338 } else 339 nref = not->noticeref; 340 nos = X509V3_parse_list(cnf->value); 341 if (!nos || !sk_CONF_VALUE_num(nos)) { 342 X509V3err(X509V3_F_NOTICE_SECTION, X509V3_R_INVALID_NUMBERS); 343 X509V3_conf_err(cnf); 344 goto err; 345 } 346 ret = nref_nos(nref->noticenos, nos); 347 sk_CONF_VALUE_pop_free(nos, X509V3_conf_free); 348 if (!ret) 349 goto err; 350 } else { 351 X509V3err(X509V3_F_NOTICE_SECTION, X509V3_R_INVALID_OPTION); 352 X509V3_conf_err(cnf); 353 goto err; 354 } 355 } 356 357 if (not->noticeref && 358 (!not->noticeref->noticenos || !not->noticeref->organization)) { 359 X509V3err(X509V3_F_NOTICE_SECTION, 360 X509V3_R_NEED_ORGANIZATION_AND_NUMBERS); 361 goto err; 362 } 363 364 return qual; 365 366 merr: 367 X509V3err(X509V3_F_NOTICE_SECTION, ERR_R_MALLOC_FAILURE); 368 369 err: 370 POLICYQUALINFO_free(qual); 371 return NULL; 372} 373 374static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos) 375{ 376 CONF_VALUE *cnf; 377 ASN1_INTEGER *aint; 378 379 int i; 380 381 for (i = 0; i < sk_CONF_VALUE_num(nos); i++) { 382 cnf = sk_CONF_VALUE_value(nos, i); 383 if (!(aint = s2i_ASN1_INTEGER(NULL, cnf->name))) { 384 X509V3err(X509V3_F_NREF_NOS, X509V3_R_INVALID_NUMBER); 385 goto err; 386 } 387 if (!sk_ASN1_INTEGER_push(nnums, aint)) 388 goto merr; 389 } 390 return 1; 391 392 merr: 393 ASN1_INTEGER_free(aint); 394 X509V3err(X509V3_F_NREF_NOS, ERR_R_MALLOC_FAILURE); 395 396 err: 397 return 0; 398} 399 400static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol, 401 BIO *out, int indent) 402{ 403 int i; 404 POLICYINFO *pinfo; 405 /* First print out the policy OIDs */ 406 for (i = 0; i < sk_POLICYINFO_num(pol); i++) { 407 pinfo = sk_POLICYINFO_value(pol, i); 408 BIO_printf(out, "%*sPolicy: ", indent, ""); 409 i2a_ASN1_OBJECT(out, pinfo->policyid); 410 BIO_puts(out, "\n"); 411 if (pinfo->qualifiers) 412 print_qualifiers(out, pinfo->qualifiers, indent + 2); 413 } 414 return 1; 415} 416 417static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals, 418 int indent) 419{ 420 POLICYQUALINFO *qualinfo; 421 int i; 422 for (i = 0; i < sk_POLICYQUALINFO_num(quals); i++) { 423 qualinfo = sk_POLICYQUALINFO_value(quals, i); 424 switch (OBJ_obj2nid(qualinfo->pqualid)) { 425 case NID_id_qt_cps: 426 BIO_printf(out, "%*sCPS: %s\n", indent, "", 427 qualinfo->d.cpsuri->data); 428 break; 429 430 case NID_id_qt_unotice: 431 BIO_printf(out, "%*sUser Notice:\n", indent, ""); 432 print_notice(out, qualinfo->d.usernotice, indent + 2); 433 break; 434 435 default: 436 BIO_printf(out, "%*sUnknown Qualifier: ", indent + 2, ""); 437 438 i2a_ASN1_OBJECT(out, qualinfo->pqualid); 439 BIO_puts(out, "\n"); 440 break; 441 } 442 } 443} 444 445static void print_notice(BIO *out, USERNOTICE *notice, int indent) 446{ 447 int i; 448 if (notice->noticeref) { 449 NOTICEREF *ref; 450 ref = notice->noticeref; 451 BIO_printf(out, "%*sOrganization: %s\n", indent, "", 452 ref->organization->data); 453 BIO_printf(out, "%*sNumber%s: ", indent, "", 454 sk_ASN1_INTEGER_num(ref->noticenos) > 1 ? "s" : ""); 455 for (i = 0; i < sk_ASN1_INTEGER_num(ref->noticenos); i++) { 456 ASN1_INTEGER *num; 457 char *tmp; 458 num = sk_ASN1_INTEGER_value(ref->noticenos, i); 459 if (i) 460 BIO_puts(out, ", "); 461 if (num == NULL) 462 BIO_puts(out, "(null)"); 463 else { 464 tmp = i2s_ASN1_INTEGER(NULL, num); 465 if (tmp == NULL) 466 return; 467 BIO_puts(out, tmp); 468 OPENSSL_free(tmp); 469 } 470 } 471 BIO_puts(out, "\n"); 472 } 473 if (notice->exptext) 474 BIO_printf(out, "%*sExplicit Text: %s\n", indent, "", 475 notice->exptext->data); 476} 477 478void X509_POLICY_NODE_print(BIO *out, X509_POLICY_NODE *node, int indent) 479{ 480 const X509_POLICY_DATA *dat = node->data; 481 482 BIO_printf(out, "%*sPolicy: ", indent, ""); 483 484 i2a_ASN1_OBJECT(out, dat->valid_policy); 485 BIO_puts(out, "\n"); 486 BIO_printf(out, "%*s%s\n", indent + 2, "", 487 node_data_critical(dat) ? "Critical" : "Non Critical"); 488 if (dat->qualifier_set) 489 print_qualifiers(out, dat->qualifier_set, indent + 2); 490 else 491 BIO_printf(out, "%*sNo Qualifiers\n", indent + 2, ""); 492} 493 494 495IMPLEMENT_STACK_OF(X509_POLICY_NODE) 496 497IMPLEMENT_STACK_OF(X509_POLICY_DATA) 498